Optical Beam Expander With Parabolic Photonic Bandgap Reflector for Efficient Excitation of Optical Leaky Wave Antenna

Optical Beam Expander With Parabolic Photonic Bandgap Reflector for Efficient Excitation of Optical Leaky Wave Antenna
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具有抛物面光子带隙反射器的光学扩束器可有效激发光学漏波天线

DOI:
10.1109/jlt.2019.2898210
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发表时间:
2019
影响因子:
4.7
通讯作者:
Arai Hiroyuki
Arai Hiroyuki
中科院分区:
工程技术2区
文献类型:
--
作者:
Hashiguchi Hiroshi;Baba Toshihiko;Arai Hiroyuki

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提出并演示了一种由平板波导和抛物光子带隙反射器组成的扩束器激励的光学漏波天线。传统的OLWA通常通过绝热锥形波导来激励,但是其大尺寸是一个缺点。利用硅光子学技术制作的OLWA结构易于制作PBG反射器,其尺寸比绝热锥形波导小10倍。通过模拟和测量,我们证实了通过扩束器激发的浅光栅波导,这是一种OLWA。
This paper proposes and demonstrates an optical leaky wave antenna (OWLA) excited by a beam expander consisting of a slab waveguide and parabolic photonic bandgap (PBG) reflector. Conventional OLWAs are usually excited through an adiabatic taper waveguide, but its large size is a drawback. The PBG reflector is easy to fabricate with the OLWA using Si photonics technology and its size is ten times smaller than that of the adiabatic taper waveguide. We confirmed the excitation of a shallow grating waveguide, which is a kind of OLWAs, through the beam expander in simulations and measurements.
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